mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-30 04:22:44 +00:00
f44029e322
struct kld_file_stat embeds a reference to MAXPATHLEN, defined in param.h. PR: 280432 MFC after: 2 weeks
131 lines
3.4 KiB
Groff
131 lines
3.4 KiB
Groff
.\"
|
|
.\" Copyright (c) 1999 Chris Costello
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.Dd March 28, 2012
|
|
.Dt KLDSTAT 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm kldstat
|
|
.Nd get status of kld file
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In sys/linker.h
|
|
.Ft int
|
|
.Fn kldstat "int fileid" "struct kld_file_stat *stat"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn kldstat
|
|
system call writes the info for the file referred to by
|
|
.Fa fileid
|
|
into
|
|
.Fa stat .
|
|
.Bd -literal
|
|
struct kld_file_stat {
|
|
int version; /* set to sizeof(struct kld_file_stat) */
|
|
char name[MAXPATHLEN];
|
|
int refs;
|
|
int id;
|
|
caddr_t address;
|
|
size_t size;
|
|
char pathname[MAXPATHLEN];
|
|
};
|
|
.Ed
|
|
.Bl -tag -width XXXaddress
|
|
.It version
|
|
This field is set to the size of the structure mentioned above by the code
|
|
calling
|
|
.Fn kldstat ,
|
|
and not
|
|
.Fn kldstat
|
|
itself.
|
|
.It name
|
|
The name of the file referred to by
|
|
.Fa fileid .
|
|
.It refs
|
|
The number of modules referenced by
|
|
.Fa fileid .
|
|
.It id
|
|
The id of the file specified in
|
|
.Fa fileid .
|
|
.It address
|
|
The load address of the kld file.
|
|
.It size
|
|
The amount of memory in bytes allocated by the file.
|
|
.It pathname
|
|
The full name of the file referred to by
|
|
.Fa fileid ,
|
|
including the path.
|
|
.El
|
|
.Sh RETURN VALUES
|
|
.Rv -std kldstat
|
|
.Sh ERRORS
|
|
The information for the file referred to by
|
|
.Fa fileid
|
|
is filled into the structure pointed to by
|
|
.Fa stat
|
|
unless:
|
|
.Bl -tag -width Er
|
|
.It Bq Er ENOENT
|
|
The file was not found (probably not loaded).
|
|
.It Bq Er EINVAL
|
|
The version specified in the
|
|
.Fa version
|
|
field of stat is not the proper version.
|
|
You would need to rebuild world, the
|
|
kernel, or your application, if this error occurs, given that you did properly
|
|
fill in the
|
|
.Fa version
|
|
field.
|
|
.It Bq Er EFAULT
|
|
There was a problem copying one, some, or all of the fields into
|
|
.Fa stat
|
|
in the
|
|
.Xr copyout 9
|
|
function.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr kldfind 2 ,
|
|
.Xr kldfirstmod 2 ,
|
|
.Xr kldload 2 ,
|
|
.Xr kldnext 2 ,
|
|
.Xr kldsym 2 ,
|
|
.Xr kldunload 2 ,
|
|
.Xr modfind 2 ,
|
|
.Xr modfnext 2 ,
|
|
.Xr modnext 2 ,
|
|
.Xr modstat 2 ,
|
|
.Xr kld 4 ,
|
|
.Xr kldstat 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm kld
|
|
interface first appeared in
|
|
.Fx 3.0 .
|
|
.Sh BUGS
|
|
The pathname may not be accurate if the file system mounts have
|
|
changed since the module was loaded, or if this function is called
|
|
within a chrooted environment.
|